That nu Who bit also informs something about the Peladon episodes. You know how Alpha Centauri comes off like the typical naive ambassador on Peladon, but it turns out the Ice Warrior is a red herring and Alpha Centauri lucked out? Well no, Alpha Centauri probably knew Ice Warriors better than the Doctor did, and could tell an honest one when he/she saw one.

When I heard that voice on nu Who I said "oh dear God please no ..." and then the view screen kicks in ... yep, that was the original voice actress from the Pertwee era, now in her 90s.